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MCP servers › io.github.lantean-code › roslyn-workbench-mcp

MCP server · registry snapshot 2026-10-23 · last tested 2026-10-23

io.github.lantean-code/roslyn-workbench-mcp

Bring Visual Studio-style C# fixes and refactorings to your AI agent with local Roslyn Code Actions. — the publisher's description

5 of 5 record checks metRead-only · tools listed 2026-10-23Topic: developer-tools · AI-classifiedversion 1.1.0C#standard input/output48 tools

Summary

io.github.lantean-code/roslyn-workbench-mcp is a local MCP server listed in the official MCP registry at version 1.1.0. On 2026-10-23 ProtocolProbe started its published package in an isolated sandbox in read-only mode and read its inventory: 48 tools, 0 resources and 0 prompts.

Record checks

5 of 5 record checks met · 4 do not apply

  • met: Registry entry is active and says how to run it
  • met: Source repository link opens
  • met: Repository is not archived
  • met: Code pushed to the repository in the 90 days before our check
  • met: Repository publishes a security policy (SECURITY.md)
  • not applicable: Package names its licence with a standard (SPDX) identifier
  • not applicable: The version the registry lists can be installed and is not withdrawn
  • not applicable: npm package carries build provenance (attestation)
  • not applicable: No known critical or high advisory in the package or its dependencies
  • Not ranked by downloads: not an npm or PyPI package
  • Not ranked by stars: 2 stars (ranked from 10)

From public records, not a safety rating. Each check with its reason · Is it safe to install?

Key facts

Runs
local package
Transport
standard input/output
Package
NuGet
Repository
public
Tools
48
Described as changing data
2 of 48 toolsAI-classified
Mainly works on
files and code on the machine it runs onAI-classified
Topic
developer-toolsAI-classified
Last tested
2026-10-23

Add to your client

Worth knowing before you connect it

  • 2 tools are described as changing something (submit-error-report, workspace-open): our AI model's reading of the descriptions, not something we tested. We did not call them.

Each line comes from a section below, with its source and date.

How fresh this is

Live-tested
yes, a real session (not a text-only review)
Last tested
2026-10-23
Mode
read-only (no tool calls)
Latest version
1.1.0, published 2026-10-20 (registry, as of the 2026-10-23 snapshot)
First listed version
2026-10-10 (earliest version still in the registry; older removed versions would be earlier)
Version history
2 versions listed, 2026-10-10 to 2026-10-20; 2 in the 90 days before the 2026-10-23 snapshot.
Most recent 2 versions
  • 1.1.0 · 2026-10-20
  • 1.0.1 · 2026-10-10
(versions still listed in the registry only)
Registry data
snapshot 2026-10-23
Package and repository
checked 2026-10-23
Engine
mcp-runtime-engine@0.1.0 · sdk@1.32.0

Changes since the last refresh

New in the registry: not in the list of 2026-10-04, listed on 2026-10-23 with version 1.1.0 (published 2026-10-20).

Source: the official MCP Registry list on 2026-10-04 and on 2026-10-23.

What it is

What does this server offer?

Observed inventory
48tools
0resources
0prompts

What it mainly works on, as our AI model read its tool descriptions: files and code on the machine it runs on.

2 of 48 tools are described as changing something (creating, editing, deleting, sending or running). For 9 the reading was uncertain, so no mark is shown.

  • get-solution-structurereads or searches

    “Returns bounded solution folders, projects, target frameworks and direct project relationships.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    6 inputs
    • includeDocumentsboolean“Whether documents should be included in project projections.”
    • foldersLimitinteger or null“Maximum number of folders to return.”
    • projectsLimitinteger or null“Maximum number of projects to return.”
    • documentsPerProjectLimitinteger or null“Maximum number of documents to return for each project.”
    • projectReferencesPerProjectLimitinteger or null“Maximum number of direct project references to return for each project.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • get-project-detailsreads or searches

    “Returns project metadata, options and selected document details.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    7 inputs, 1 required
    • projectobjectrequired“Provide projectId, name, path, targetFramework, or any combination.”
    • includeDocumentsboolean“Whether documents should be included.”
    • documentsLimitinteger or null“Maximum number of documents to return.”
    • projectReferencesLimitinteger or null“Maximum number of project references to return.”
    • metadataReferencesLimitinteger or null“Maximum number of metadata references to return.”
    • analyzersLimitinteger or null“Maximum number of analyzers to return.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • get-document-optionsreads or searches

    “Returns language and optional detailed parse and analyzer-config options for a document.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    4 inputs, 1 required
    • documentobjectrequired“Target document.”
    • includeParseOptionsboolean“Whether to include parse options.”
    • includeAnalyzerConfigboolean“Whether to include effective analyser configuration.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • get-document-outlinereads or searches

    “Returns a bounded semantic outline for one document.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    5 inputs, 1 required
    • documentobjectrequired“Target document.”
    • includeMembersboolean“Whether member nodes should be included.”
    • maxDepthinteger“The maximum semantic hierarchy depth below the document root.”
    • nodesLimitinteger or null“The optional maximum total number of projected outline nodes.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • get-code-contextreads or searches

    “Returns a bounded code window with the enclosing semantic context for a selected location.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    9 inputs, 1 required
    • locationobjectrequired“The location selector.”
    • beforeLinesinteger or null“The optional number of lines to include before the selected location.”
    • afterLinesinteger or null“The optional number of lines to include after the selected location.”
    • includeEnclosingSymbolsboolean“Whether the enclosing symbol chain should be included.”
    • includeDiagnosticsboolean“Whether diagnostics should be included for the selected span.”
    • enclosingSymbolsLimitinteger or null“Maximum number of enclosing symbols to return.”
    • diagnosticsLimitinteger or null“Maximum number of diagnostics to return.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • search-symbolsreads or searches

    “Searches declarations by name, metadata name and optional semantic filters.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    8 inputs
    • querystring“Source-name query.”
    • metadataNamestring“Filters declaration metadata names by a case-insensitive substring; also supplies the search pattern when query is omitted.”
    • scopeobject or null“The optional scope selector.”
    • kindsarray or null“The included symbol kinds.”
    • accessibilitiesarray or null“The included accessibilities.”
    • namespacestring or null“The optional namespace filter.”
    • symbolsLimitinteger or null“Maximum number of results to return.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • resolve-symbolreads or searches

    “Resolves the symbol at a location or selection and returns its canonical selector.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    4 inputs, 1 required
    • locationobjectrequired“The location selector.”
    • declarationsLimitinteger or null“Maximum number of declarations to return.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • get-symbol-inforeads or searches

    “Returns detailed metadata for a resolved symbol.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    6 inputs, 1 required
    • symbolobjectrequired“The symbol selector.”
    • includeDocumentationboolean“Whether XML documentation should be included.”
    • parametersLimitinteger or null“Maximum number of parameters to return.”
    • declarationsLimitinteger or null“Maximum number of declarations to return.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • get-symbol-membersreads or searches

    “Lists declared members and optional inherited or interface members for a resolved symbol.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    6 inputs, 1 required
    • symbolobjectrequired“The symbol selector.”
    • includeInheritedboolean“Whether inherited members should be included.”
    • includeExplicitInterfaceboolean“Whether explicit interface members should be included.”
    • membersLimitinteger or null“Maximum number of results to return.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • get-symbol-attributesreads or searches

    “Returns declared and inherited attributes for a resolved symbol.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    5 inputs, 1 required
    • symbolobjectrequired“The symbol selector.”
    • includeInheritedboolean“Whether inherited attributes should be included.”
    • attributesLimitinteger or null“Maximum number of results to return.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • go-to-definitionreads or searches

    “Finds source or metadata definitions for a resolved symbol.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    4 inputs, 1 required
    • symbolobjectrequired“The symbol selector.”
    • definitionsLimitinteger or null“Maximum number of definitions to return.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • find-referencesreads or searches

    “Finds source references, optionally including declarations and access classification.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    7 inputs, 1 required
    • symbolobjectrequired“Provide exactly one of location or documentationCommentId.”
    • scopeobject or null“Limits references and declarations to the selected documents or projects; omitted searches the loaded solution.”
    • includeDefinitionsboolean“Include source declarations alongside references within the same result limit; defaults to true.”
    • includeContextboolean“Include the trimmed source line for each returned reference when available; declaration entries have no context.”
    • referencesLimitinteger or null“Caps returned occurrences, including declarations when requested.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
Show 36 more tools
  • find-callersreads or searches

    “Returns bounded direct source call sites and containing symbols.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    7 inputs, 1 required
    • symbolobjectrequired“Provide exactly one of location or documentationCommentId.”
    • scopeobject or null“Limits caller discovery to the selected documents or projects; omitted searches the loaded solution.”
    • includeContextboolean“Include the trimmed source line for each returned call site when available; defaults to false.”
    • callersLimitinteger or null“Caps returned callers independently of the call-site limit.”
    • callSitesPerCallerLimitinteger or null“Caps call sites independently for each returned caller.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • find-calleesreads or searches

    “Returns symbols directly invoked by a method or selected executable body.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    7 inputs
    • symbolobject“Symbol whose callees should be found.”
    • locationobject“Source location or executable region whose contained callees should be found.”
    • includeIndirectboolean“Whether reachable source callees should be traversed transitively.”
    • maxDepthinteger“The maximum call depth to traverse when indirect callees are included.”
    • calleesLimitinteger or null“Maximum number of results to return.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • find-implementationsreads or searches

    “Finds implementations of an interface or abstract member.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    5 inputs, 1 required
    • symbolobjectrequired“Provide exactly one of location or documentationCommentId.”
    • scopeobject or null“Selects projects to search; a document scope searches its containing project.”
    • implementationsLimitinteger or null“Caps returned distinct implementation symbols.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • find-overridesreads or searches

    “Finds overrides of a virtual or abstract member.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    5 inputs, 1 required
    • symbolobjectrequired“Provide exactly one of location or documentationCommentId.”
    • scopeobject or null“Selects projects to search; a document scope searches its containing project.”
    • overridesLimitinteger or null“Caps returned distinct overriding members.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • find-derived-typesreads or searches

    “Finds derived types for a resolved base type.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    6 inputs, 1 required
    • symbolobjectrequired“Provide exactly one of location or documentationCommentId.”
    • scopeobject or null“Selects projects to search; a document scope searches its containing project.”
    • maxDepthinteger“Maximum traversal depth; directly derived types are at depth one.”
    • derivedTypesLimitinteger or null“Caps returned derived types within maxDepth.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • get-type-hierarchyreads or searches

    “Returns base, interface, and optional derived type relationships for a resolved type.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    8 inputs, 1 required
    • symbolobjectrequired“The symbol selector.”
    • includeDerivedboolean“Whether derived types should be included.”
    • maxDepthinteger“The maximum base-type and derived-type traversal depth.”
    • baseTypesLimitinteger or null“Maximum number of base types to return.”
    • interfacesLimitinteger or null“Maximum number of interfaces to return.”
    • derivedTypesLimitinteger or null“Maximum number of derived types to return.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • find-overloadsreads or searches

    “Returns overload signatures for a resolved method or constructor.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    4 inputs, 1 required
    • symbolobjectrequired“The symbol selector.”
    • overloadsLimitinteger or null“Maximum number of results to return.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • get-partial-declarationsreads or searches

    “Returns the declarations for a partial type or method.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    4 inputs, 1 required
    • symbolobjectrequired“The symbol selector.”
    • declarationsLimitinteger or null“Maximum number of results to return.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • get-symbol-dependenciesreads or searches

    “Returns the direct symbols used by a resolved symbol.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    5 inputs, 1 required
    • symbolobjectrequired“The symbol selector.”
    • includeAssembliesboolean“Whether containing assembly names should be included with each dependency.”
    • dependenciesLimitinteger or null“Maximum number of results to return.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • get-symbol-dependentsreads or searches

    “Returns symbols that directly depend on a resolved symbol.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    5 inputs, 1 required
    • symbolobjectrequired“Provide exactly one of location or documentationCommentId.”
    • scopeobject or null“Limits the source references used to discover dependents to the selected documents or projects; omitted searches the loaded solution.”
    • dependentsLimitinteger or null“Caps returned distinct dependent symbols.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • get-dependency-graphreads or searches

    “Returns a bounded dependency graph for the selected scope and granularity.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    5 inputs
    • scopeobject or null“The scope to graph.”
    • granularitystring“The dependency graph granularity.”
    • nodesLimitinteger or null“Maximum number of nodes to return.”
    • edgesLimitinteger or null“Maximum number of edges to return.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • find-dependency-cyclesreads or searches

    “Returns detected dependency cycles for the selected scope and granularity.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    6 inputs
    • scopeobject or null“The scope to analyse.”
    • granularitystring“The dependency graph granularity.”
    • cyclesLimitinteger or null“Maximum number of results to return.”
    • nodesLimitinteger or null“The maximum number of graph nodes to analyse.”
    • edgesLimitinteger or null“The maximum number of graph edges to analyse.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • find-unused-symbolsreads or searches

    “Returns candidate unused locals and members from compiler diagnostics.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    5 inputs
    • scopeobject or null“The optional search scope.”
    • includeInternalboolean“Whether internal members should be included.”
    • excludeGeneratedboolean“Whether generated files should be excluded.”
    • candidatesLimitinteger or null“Maximum number of results to return.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • find-duplicate-codereads or searches

    “Returns bounded duplicate executable-block pointers that normalize to the same statement sequence.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    5 inputs
    • scopeobject or null“The optional search scope.”
    • minimumStatementsinteger“The minimum statement count to consider.”
    • groupsLimitinteger or null“Maximum number of results to return.”
    • occurrencesPerGroupLimitinteger or null“Maximum number of occurrences to return for each duplicate group.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • get-diagnosticsreads or searches

    “Returns compiler and analyzer diagnostics for a selected scope.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    5 inputs
    • scopeobject or null“The optional scope selector.”
    • severitiesarray or null“The included diagnostic severities.”
    • idsarray or null“The included diagnostic identifiers.”
    • diagnosticsLimitinteger or null“Maximum number of results to return.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • analyze-nullabilityreads or searches

    “Returns nullable-flow diagnostics for a selected scope or location.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    5 inputs
    • scopeobject or null“Selects documents or projects to analyse when location is omitted; omitted searches the loaded solution.”
    • locationobject or null“Provide exactly one of span or selection.”
    • findingsLimitinteger or null“Caps returned nullable-flow diagnostics.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • analyze-asyncreads or searches

    “Returns bundled AsyncFixer diagnostics and compiler diagnostic CS4014 for a selected scope.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    3 inputs
    • scopeobject or null“The optional search scope.”
    • findingsLimitinteger or null“Maximum number of results to return.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • analyze-disposablesreads or searches

    “Returns advisory findings for undisposed local disposable values.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    3 inputs
    • scopeobject or null“The optional search scope.”
    • findingsLimitinteger or null“Maximum number of results to return.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • analyze-control-flowreads or searches

    “Analyzes control flow for an exact complete statement or contiguous statement range.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    5 inputs, 1 required
    • locationobjectrequired“An exact complete statement or contiguous statement range to analyze.”
    • exitsLimitinteger or null“Maximum number of exit points to return.”
    • returnsLimitinteger or null“Maximum number of return statements to return.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • analyze-data-flowreads or searches

    “Analyzes data flow for an exact expression, complete statement, or contiguous statement range.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    4 inputs, 1 required
    • locationobjectrequired“An exact expression, complete statement or contiguous statement range to analyze.”
    • symbolsPerCategoryLimitinteger or null“Maximum number of symbols to return in each data-flow category.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • get-operation-treereads or searches

    “Returns a bounded IOperation tree with metadata and exact source pointers.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    5 inputs, 1 required
    • locationobjectrequired“The selected location.”
    • maxDepthinteger“The maximum traversal depth.”
    • nodesLimitinteger or null“The optional maximum total number of projected operation nodes.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • get-control-flow-graphreads or searches

    “Returns a bounded control-flow graph with operation metadata and exact source pointers.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    7 inputs
    • maxBlocksinteger or null“The maximum number of projected basic blocks.”
    • maxRegionsinteger or null“The maximum number of projected flow regions.”
    • maxOperationsPerBlockinteger or null“The maximum number of projected operations in each basic block.”
    • symbolobject“Symbol whose control-flow graph should be returned.”
    • locationobject“Source location whose enclosing executable body should be graphed.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • get-change-impactreads or searches

    “Returns a bounded impact summary and supporting source locations for a symbol change.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    5 inputs, 1 required
    • symbolobjectrequired“Provide exactly one of location or documentationCommentId.”
    • scopeobject or null“Selects documents for references and callers, and projects for override and implementation counts.”
    • locationsLimitinteger or null“Caps returned reference locations without limiting impact counts.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • get-api-surfacereads or searches

    “Returns exported API symbols for a selected scope.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    5 inputs
    • scopeobject or null“The search scope.”
    • minimumAccessibilitystring“The minimum accessibility threshold as Public, Protected, or Internal.”
    • includeObsoleteboolean“Whether obsolete symbols should be included.”
    • symbolsLimitinteger or null“Maximum number of results to return.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • get-test-impactreads or searches

    “Returns likely impacted tests for a resolved symbol.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    6 inputs, 1 required
    • symbolobjectrequired“Provide exactly one of location or documentationCommentId.”
    • testScopeobject or null“Limits candidate test discovery to the selected documents or projects; omitted searches the loaded solution.”
    • includeReasonsboolean“Include explanations of why each returned test may be affected; defaults to false and does not change which tests match.”
    • testsLimitinteger or null“Caps returned likely impacted tests.”
    • expectedSnapshotobject or null“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • submit-error-reportdoes something elsedescribed as changing data

    “After applying the configured consent policy, submits one previously prepared immutable external error report to its reviewed destination.”

    Publisher declares: read-only no · destructive yes · idempotent yes · open-world yes

    1 input, 1 required
    • submissionHandlestringrequired“Opaque handle returned for the exact reviewed payload to submit.”
  • prepare-error-report

    “Creates the complete external payload without network activity.”

    Publisher declares: read-only yes · destructive no · idempotent no · open-world no

    1 input, 1 required
    • correlationIdstringrequired“Correlation identifier of the captured failure to prepare for review.”
  • workspace-opendescribed as changing data

    “Loads an additional writable workspace.”

    Publisher declares: read-only no · destructive no · idempotent no · open-world no

    4 inputs, 1 required
    • aliasstring or null“The optional caller-friendly alias for the workspace.”
    • pathstringrequired“The absolute solution or project path to load.”
    • msBuildPropertiesobject or null“The optional allowlisted MSBuild global properties used to evaluate this workspace.”
    • workspaceRootstring or null“The optional absolute repository or workspace root used for coordination and transaction boundaries.”
  • server-status

    “Returns server diagnostics without requiring a loaded workspace.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    1 input
    • detailstring“Amount of server status detail to return.”
  • workspace-status

    “Reports the selected workspace lifecycle and cross-instance state.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    2 inputs
    • detailstring“Amount of workspace status detail to return.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • list-code-actions

    “Lists bounded Roslyn code fixes and refactorings for a document, selection or caret.”

    Publisher declares: read-only yes · destructive no · idempotent no · open-world no

    8 inputs, 3 required
    • documentobjectrequired“Target document.”
    • rangeobject or null“The optional selection or caret range.”
    • expectedSnapshotobjectrequired“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • kindsstringrequired“The kinds of actions to discover.”
    • diagnosticIdsarray or null“The optional diagnostic identifier filter for code fixes.”
    • includeProvenanceboolean“Whether returned actions should reference a response-level runtime provider catalogue.”
    • limitinteger or null“The maximum number of action leaves to return.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • workspace-close

    “Closes the selected workspace.”

    Publisher declares: read-only no · destructive no · idempotent no · open-world no

    1 input
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • workspace-liston 1 other server

    “Lists the currently loaded workspaces.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    Takes no inputs.

  • prepare-fix-all

    “Revalidates a Code Fix and reports the bounded impact of one explicit Fix All scope without staging changes.”

    Publisher declares: read-only yes · destructive no · idempotent no · open-world no

    6 inputs, 3 required
    • actionIdstringrequired“The opaque originating Code Fix reference.”
    • scopestringrequired“The explicit Fix All scope.”
    • maxChangesinteger or null“The maximum number of changed source documents to allow.”
    • affectedDocumentsLimitinteger or null“The maximum number of affected document identities to return.”
    • expectedSnapshotobjectrequired“Echo the snapshot returned with the data or transaction state used to construct this request.”
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • workspace-reload

    “Reloads the selected workspace when it is out of date.”

    Publisher declares: read-only no · destructive no · idempotent no · open-world no

    1 input
    • workspaceobject or null“Provide workspaceId, alias, path, or any combination.”
  • get-error-details

    “Returns temporary local diagnostic details for an unexpected tool failure.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    1 input, 1 required
    • correlationIdstringrequired“Correlation identifier returned with the failed tool invocation.”

Each quoted sentence is the first sentence of the publisher’s own description. The kind of tool and the “changes data” mark are our AI model’s reading of that description, not something we tested: two differently worded runs had to agree, otherwise no label is shown, and nobody has checked them by hand. A tool without the “changes data” mark is described as only reading, searching or calculating, or the two runs did not agree. No tool was called. Read the publisher’s full description before relying on it. “Publisher declares” lists the hints the server itself sends with the tool (MCP annotations: read-only, destructive, idempotent, open-world); they are the publisher's claims, not checked by us. Inputs are the parameters in the tool's own input schema: name, declared type, whether it is required, and the first sentence of its description. Read 2026-10-23.

How well are its tools described?

Features #4 and #5

How clearly this server's own tool descriptions say what a tool does, and how consistent its tool list is. The first part is an AI model's yes/no reading of each description; the second part is counted. We do not turn it into a grade.

Descriptions

AI reading of each description

Says what the tool does
100% of 40 tools
Says what it returns
98% of 40 tools
States limits, defaults or errors
90% of 40 tools
Says when to use it
0% of 39 tools
Items covered per tool
2.9 of 4 on average

Counted from the listing

Parameters with a description
100% of 227
Tools with a description
100% of 48
Typical description length
100 characters

The tool set

Counted from the listing

Tools
48
Size of the list
about 32,595 tokens for an agent to load (characters ÷ 4)
Naming
48 of 48 names use kebab-case

AI reading: easy to mix up

No pair found.

The AI items cover 40 of 48 tools: for a tool where two differently worded runs disagreed, that item is left out. They were not checked by hand, and no tool was called. “Easy to mix up” means two tools whose names or descriptions overlap without saying how they differ; the AI found none, comparing tools within groups of 40. We do not rate whether the tool set is complete or whether side effects are spelled out, because our AI reading of those was not reliable enough.

How do I add it to my client?

Config from the registry entry
  • No config: no ready-made command for the NuGet package; use the publisher's instructions.

Built from the server's registry entry with each client's documented format (checked 2026-10-14; the Cursor link and the VS Code command 2026-10-19; the MCP Inspector command 2026-10-21). Values in < > are yours to fill in; this page never contains a key. Where the server needs a setting the entry does not declare, it can still fail to start.

Does the registry listing match what we found?

Feature #6

The registry verifies a package once, when it is published, and does not re-check it. A difference below is about the listing, not a judgement of the publisher.

Registry saysWe foundResultSource · date
Published package can be startedStarted and answeredmatchesour test · 2026-10-23
Repository github.com/lantean-code/roslyn-workbench-mcpOpens publiclymatchesapi.github.com · 2026-10-23

Who made it?

Feature #7 · lineage

Facts about the publisher. We do not turn them into a trust score.

Namespace
io.github.lantean-code
GitHub owner
an organization (lantean-code)
Repository
github.com/lantean-code/roslyn-workbench-mcp
Stars
2
Repository age
91–180 days
Last push
0–30 days ago
Archived
no
Security policy
SECURITY.md

Source: the registry entry and api.github.com · 2026-10-23; security policy read from GitHub · 2026-10-23.

Publish this server? Run these checks against it yourself before release, from your own machine: a server the command starts, or your own server at its URL after a one-time proof that you control it: npx protocolprobe-selftest.

Choosing

Record checks

Public records · not a safety rating

5 of 5 record checks met · 4 do not apply

  • Not ranked by downloads: not an npm or PyPI package
  • Not ranked by stars: 2 stars (ranked from 10)
  • MetRegistry entry is active and says how to run itActive, with a package or a remote address.
  • MetSource repository link opensThe linked GitHub repository is public.
  • MetRepository is not archivedNot archived.
  • MetCode pushed to the repository in the 90 days before our checkLast push 0-30 days before our check.
  • MetRepository publishes a security policy (SECURITY.md)SECURITY.md found.
  • Does not applyPackage names its licence with a standard (SPDX) identifierNot an npm or PyPI package.
  • Does not applyThe version the registry lists can be installed and is not withdrawnNot an npm or PyPI package.
  • Does not applynpm package carries build provenance (attestation)PyPI packages have no npm-style attestation.
  • Does not applyNo known critical or high advisory in the package or its dependenciesNot an npm or PyPI package.

Read from public records only: the registry entry, npm/PyPI, GitHub and advisory databases, checked 2026-10-23. No tool was called. Only “met” and “not met” are counted, so the total differs between servers; a check that does not apply or that we could not run is listed, never counted against it. It is not a safety rating. How each check works · Leaderboards

Common questions about io.github.lantean-code/roslyn-workbench-mcp

Answered from the data above

Is io.github.lantean-code/roslyn-workbench-mcp safe to install?

We do not rate servers as safe or unsafe. 5 of its 5 applicable record checks are met (facts from public records, each listed on this page). What the records show: Its source repository opens publicly. Its repository had a push in the last 90 days. 2 of its tools describe changing data (our AI model's reading of the descriptions). These are facts with their sources on this page, not a safety guarantee, and we did not run its tools.

Has io.github.lantean-code/roslyn-workbench-mcp been security tested?

Partly. 2 of the 12 checks that apply to it were exercised. We started the package in an isolated sandbox and read what it declares, but this test round was read-only, so its tools were not called. No security verdict is published before verification.

What can io.github.lantean-code/roslyn-workbench-mcp do?

It lists 48 tools. In our AI model's reading of their descriptions (two runs had to agree, nobody checked it by hand), they include tools that read or search and do something else. We did not call any tool, so this describes the text, not the behaviour.

Can io.github.lantean-code/roslyn-workbench-mcp change or delete data?

2 of its tools say in their description that they create, edit, delete, send or run something (our AI model's reading). We did not call any tool, so we cannot say what actually happens.

Does io.github.lantean-code/roslyn-workbench-mcp publish a security policy?

Yes: its repository has a public security policy (github.com/lantean-code/roslyn-workbench-mcp/blob/HEAD/SECURITY.md). That is the publisher's statement, not permission for us to test the server, and we call none of its tools.

Where is the source code of io.github.lantean-code/roslyn-workbench-mcp?

In github.com/lantean-code/roslyn-workbench-mcp, which opens publicly.

Found this page useful?

Anonymous · no sign-in

A quick, anonymous reaction — no account, no email. One per kind from your browser. The tally updates when the page is next refreshed, and it is only a rough count, never a safety rating or a measured number of people.

Similar servers

Same topic · AI-read

Active servers whose topic is also “developer-tools” and that have at least one tool of the same kind; most kinds in common first, then most GitHub stars. The topic and the tool kinds are an AI model's reading of the publishers' descriptions, not checked by hand. Similar is not a recommendation.

Compare with another server

Side by side: registry entry, our read-only session, the tools and the 18 classification fields. Same values as each page; no score.

Security testing

What did we test, and what did we leave out?

18 checks · features #1, #2

Not probed (read-only run)

We started the package in an isolated sandbox and read what it declares, but this test round was read-only, so its tools were not called. No security score is given; a check we did not run is never counted as passed.

The 18 checks at a glanceour test · 2026-10-23
  1. Inventory: exercised
  2. Hidden instructions: exercised
  3. Real execution: not run · our policy
  4. Secret leak: not run · nothing to check it against
  5. Internal addresses: not run · our policy
  6. Unconfirmed changes: not run · our policy
  7. Bad input: not run · our policy
  8. Model requests: not run · nothing to check it against
  9. Sensitive questions: not run · nothing to check it against
  10. Folder boundary: not run · our policy
  11. Log leaks: not run · nothing to check it against
  12. Hidden content: not run · nothing to check it against
  13. Fake assistant turns: not applicable
  14. Token passthrough: not applicable
  15. Token audience: not applicable
  16. Sign-in redirect: not applicable
  17. Consent handling: not applicable
  18. Sign-in metadata: not applicable

2 exercised10 not run (reason given)6 not applicable

Each check ends in exactly one state: exercised, not run (with the reason), or not applicable (with the reason). 2 of the 12 checks that apply to it were exercised. We do not publish security-check outcomes for named servers.

Exercised · 2
  • 1Inventory
    tool-list    Reads the declared tools, resources and prompts.exercised
  • 2Hidden instructions
    description-poisoning    Looks for hidden instructions in tool descriptions.exercised
Not run, with the reason · 10
  • 3Real execution
    real-execution    Calls a tool and checks what really happens.This check calls the package's tools. This test round was read-only, so no tool was called; tools can act on outside services with the publisher's or a user's account.not run · our policy
  • 4Secret leak
    canary-leak    Plants a fake secret and checks whether it leaks.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against
  • 5Internal addresses
    ssrf    Checks whether a tool can be steered to internal addresses.This check calls the package's tools. This test round was read-only, so no tool was called; tools can act on outside services with the publisher's or a user's account.not run · our policy
  • 6Unconfirmed changes
    write-without-confirmation    Checks whether tools that change data act without asking.This check calls the package's tools. This test round was read-only, so no tool was called; tools can act on outside services with the publisher's or a user's account.not run · our policy
  • 7Bad input
    error-handling    Sends bad input and watches how the server answers.This check calls the package's tools. This test round was read-only, so no tool was called; tools can act on outside services with the publisher's or a user's account.not run · our policy
  • 8Model requests
    sampling    Checks whether the server asks the client's model to act for it.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against
  • 9Sensitive questions
    elicitation-sensitive-data    Checks whether the server asks users for sensitive data.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against
  • 10Folder boundary
    root-boundary    Checks whether the server reaches outside the folders it was given.This check calls the package's tools. This test round was read-only, so no tool was called; tools can act on outside services with the publisher's or a user's account.not run · our policy
  • 11Log leaks
    logging-side-channel    Checks whether log messages carry data they should not.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against
  • 12Hidden content
    audience-hiding    Checks resources that hide content from the user.This check needs content the server returns, and nothing was read or called.not run · nothing to check it against
Does not apply to this server · 6
  • 13Fake assistant turns
    fake-assistant-turn    Checks prompts that pose as the assistant's own words.The server exposes no prompts.not applicable
  • 14Token passthrough
    token-passthrough    Checks whether the server forwards a user's token to other services.The server runs locally over standard input/output, so there is no sign-in flow to check.not applicable
  • 15Token audience
    token-audience-validation    Checks whether tokens meant for another service are accepted.The server runs locally over standard input/output, so there is no sign-in flow to check.not applicable
  • 16Sign-in redirect
    open-redirect    Checks the sign-in redirect for abuse.The server runs locally over standard input/output, so there is no sign-in flow to check.not applicable
  • 17Consent handling
    confused-deputy    Checks consent handling when one service acts for another.The server runs locally over standard input/output, so there is no sign-in flow to check.not applicable
  • 18Sign-in metadata
    oauth-url-scheme    Checks the published sign-in metadata for unsafe URLs.The server runs locally over standard input/output, so there is no sign-in flow to check.not applicable

Source: our own test in an isolated sandbox, 2026-10-23, mcp-runtime-engine@0.1.0. Which checks count and why follows our published scoring model.

What happened during the test?

Feature #8

The steps in order, as the test record holds them.

  1. 0 msStarted the published package in an isolated sandbox (read-only mode)
  2. 4,691 msConnected after 0 redirects.
  3. Read the inventory: 48 tools, 0 resources, 0 prompts.
  4. 5,238 msFinished: 2 checks exercised.

Reference

How is it classified?

18 fields

One value per field, each with its source. Fields written by AI models are marked. A field with no value says why.

TopicAI-classified
developer-tools
AI-classified · 2026-10-23
Pricing modelAI-classified
no value
The pages we read do not state how the product is priced.
Programming language
C#
api.github.com · 2026-10-23
Hosting type
local package
registry · 2026-10-23
MCP capability
logging, tools
our test · 2026-10-23
Transport
standard input/output
registry · 2026-10-23
Required credentials
none declared
registry · no declaration is not a guarantee
Package registry
nuget
registry · 2026-10-23
Freshness
0–30 days
registry updatedAt · 2026-10-23
Lifecycle status
active
registry · 2026-10-23
License class
does not apply
package ecosystem not queried by this layer (nuget); only npm and PyPI are supported here
Integrity hash
does not apply
package ecosystem not queried by this layer (nuget); only npm and PyPI are supported here
Signature / provenance
does not apply
package ecosystem not queried by this layer (nuget); only npm and PyPI are supported here
Dependency advisories
not checked
only npm and PyPI packages are audited
Popularity
does not apply
package ecosystem not queried by this layer (nuget); only npm and PyPI are supported here
Publisher signals
owner: an organization · repository age: 91–180 days · stars: 0–9
api.github.com · 2026-10-23
Maintenance
active
api.github.com · 2026-10-23
Environment
your machine
where it runs, from the hosting type

“Not stated” means the source did not state it; “does not apply” means it does not apply to this kind of server; “our limit” means our own lookup failed. A linked value opens the directory filtered to the same value.

Cite or correct this page

Sources and corrections

Suggested citation

ProtocolProbe. “io.github.lantean-code/roslyn-workbench-mcp: MCP server record.” Data checked 2026-10-23. https://protocolprobe.com/mcp/servers/io.github.lantean-code/roslyn-workbench-mcp

Figures are valid for the date shown. Our facts on this page are CC BY 4.0: reuse them with a link and the check date. Quoted text (the publisher’s descriptions, website quotes, tool names) is not ours to license.

As JSON: this record in the API · API documentation.

Badge for your README

ProtocolProbe: 5 of 5 record checks met

[![ProtocolProbe](https://protocolprobe.com/api/v1/badge/io.github.lantean-code/roslyn-workbench-mcp)](https://protocolprobe.com/mcp/servers/io.github.lantean-code/roslyn-workbench-mcp)

It shows this server's record-check count: facts from public records, no tool called. It is not a security rating or a pass. It links here and updates after each data reload.

Something wrong, or is this yours?

If a fact here is wrong, tell us and we will re-check it. If you operate this server, you can run our checks on it yourself with the free self-test command; we call no server’s tools ourselves for anything shown here.

Write to hello@protocolprobe.com · corrections log · methodology